/*
 * Copyright 2020-2021 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.canal.listener.adapter;

/**
 * Implementations of this interface can signal that a message about
 * to be delivered to a message listener should be discarded instead
 * of being delivered.
 *
 * @param <T> the entry type
 * @author 橙子
 * @since 2020/12/6
 */
public interface MessageFilterStrategy<T> {
    /**
     * @param entry the element of message.
     * @return true to discard.
     */
    boolean filter(T entry);
}
